Tensioner for tuning drums

Spannvorrichtung für ein Trommelfell

Abstract

The tensioner has a ring (4) which acts upon the tensioning ring of the drum skin, and has limbs (11) enclosing slits to admit the heads (25) of tensioning bolts (8). The drum body (1) is fitted with supports (6), which have swivelling levers (7) attached to them, which are linked to the bolts. The tensioning bolts can each consist of a threaded shaft (22) and a threaded tube (23), and the shaft can be cranked into a top dead centre position. The slits can also contain expansions, into which ring-steps (27) on shafts (28) enmesh.